Brake-operating means



NM. 2 1926 1,605,402 7 J. D. HAY

BRAKE OPERATING MEANS Filed May 11. 1925 FIGJ INVE' 'ITOR 10m l). HAY

- ATTORNEY lPatented Nov. 2, 1926.

UNITED STATES rarest JOHN D. HAY, 01

e... as

SOUTH BEND, INDIANA, ASSIGNOR '10 BENDIX BRAJHE C CEFKEEANY, It CHICAGO, ILLINOIS, A CORPORATION 031" ILLINQIS.

BRAKE-OPERATING MEANS.

- application filed May 11, 1925. Serial no. eases.

' parts;

Figure 2 is a vertical section on the line 2--2 of Figure 1. showing the operating arm in side elevation;

Figure 3 is a plane view of the arm detached, looking toward the side which faces left in Figure 2; and

Figure 4 is a section through thearm on 25 the line 4-4. of Figure 3.

In the arrangement of parts in Figure 1, 10 indicates an axle. to which is swivelled by the usual king pin a knuckle 12- rotatably supporting a wheel having a brake drum 14, The axle 10, together with a rear axle (not shown) support a chassis frame 16 by means of the usual springs 18. The

brake or other retarding means is shown supported on a backing plate 20 carried by knuckle 12, and may include shoes 22 spread against the drum by a double cam 24.

. Cam 24, or its equivalent. is operatedthrough a universal joint 26 in the swivel ling axis, by a shaft 28 slidingly carried at its inner end by a universal support 30 on the chassis frame. The particular support shown includes inner and outer pressed meta1 semi-spherical parts yieldingly held in sliding engagement with the inside and outside of a stationary. semi-spherical bracket 32 bolted to the chassis frame 16. the parts being held by a spring 34 confined by a diaphragm 36 on a sleeve 37 which slidingly receives theend of shaft 28. On a serrated. part ofshaft 28 is Oltlmpfit by a. clamp screw 38 a pressed metal arm '40 having a semi-s herical socket pressed in its lower end. link 42 forming part .of the brake-applying.mechanism projects through an opening 44 in. the socket, and is Figure 1 is a vertical transverse section" through one front brake and associated.

threaded to receive a semi-spherical stop it havinga polygonal end to receive a wrench, and having a cross pin 48 seated in notches 50in the edges of the socket. Arm i0 is held against stop 4:6 by a spring 52 sur rounding the link, and confined by a second stop 5st on the opposite. side of the arm;

Spring 52 permits ready adjustment of stop 46, and pin 48 preserves such adjustment.

Arm 40 is pressed to form strengthening edge flanges 56, which are carried entirely around the shaft 28. If desired, serrations may be pressed in the upper end of the se -rm to engage the serrations on shaft 28., er a keyway 58 may he rormed for a key seem.-

in the arm to the shaft.

Vhile one illustrative embodiment the invention has been described in rhnaail it is not my intention to limit its scope to particular embodiment. or otheswise than by the terms of the appended. ciairns.

I claim:

Wit

1. pressed metal operating arm turned to form a cylindrical shaft-embracing sleeve at one end and having stifiiening flanges at its edges extending entirely. around said sleeve.

2. is. pressed metal operating arm turned to form a cvlindrical shaft-embracing sleeve at one end and having stifi'eni'ng flanges at its edges extending entirely around said sleeve, together with means for clamping together the two parts at the endsoif the sleeve to contract the sleeve. A pressed metal operating arm erally channel-shaped in section,

with

spaced stiffening flanges at its sides, and? v with the bottom of the channel at one and -of the arm pressed into a semisphericai socitet and with the side oi said socket away fromthe end of the arm forming the tar- .nnnation of a rib pressed from said. bottom between said spaced side flanges and addie tionally stiffening the arm.

4. A pressed metal operating arm generally channel-shaped in section, with spaced stiffening flanges at its sides. and with the bottom ofthe channel at one end of the arm pressed into a semispharieal. socket and with the' side of said socket away from the end of the arm forming the ten mination of a rib pressed from said bottom between said spaced side flanges and additionally stiffening the arm. the sirle tier being notenedv on opposite sides or w s09...

et Substantially in the socket diameter which extends crosswise of the arm. a

5. A pressed metal operating arm generally channelpshaped in section, with spaced stiifening flanges at its sides, and with the bottom of the channel at one end of the arm; pressed infoa semispherical socket and Wieh the side of said socket away from the end offihe mm forming the termination of a rib pressed from said bottom between said spaced ide flanges and addi tionelly stiifenihg,.the arm, the, rib being deepest adjavent the socket and tapering to become progressively shallower toward the opposite and of the mm.

In testimony whereof I havehereunto signed my name.

JOHN D. HAY. 

